dnl Process this file with autoconf to produce a configure script.
AC_INIT(gfw_init.c)

AC_CONFIG_HEADER(gfw-config.h)

if test "$prefix" != "" ; then
    prefix="$prefix"
else
    prefix=/usr/local
fi

archive_ext=".a"

AC_PROG_CC
AC_PROG_LN_S
AC_C_BIGENDIAN

LIBS=""
AC_ARG_ENABLE(debug,Enable debug mode,enable_debug=yes,enable_debug=no)
if test $enable_debug = yes ; then
    CFLAGS="$CFLAGS -DDEBUG"
fi

CPPFLAGS="-I./ "

AC_CHECK_HEADERS( errno.h stdio.h syslog.h unistd.h stdlib.h inttypes.h)

dnl ===========================================================================
dnl Check all other routines 
dnl ===========================================================================

AC_CHECK_FUNC(fflush,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(fflush funtion not found)
fi
AC_CHECK_FUNC(printf,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(fprintf funtion not found)
fi
AC_CHECK_FUNC(free,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(free funtion not found)
fi
AC_CHECK_FUNC(htonl,result=yes,result=no)
if test $result = no ; then
    AC_SEARCH_LIBS(htonl,socket xnet,result=yes,result=no)
    if test $result = no ; then
        AC_MSG_WARN(htonl funtion not found)
    fi
fi
AC_CHECK_FUNC(ntohl,result=yes,result=no)
if test $result = no ; then
    AC_SEARCH_LIBS(ntohl,socket xnet,result=yes,result=no)
    if test $result = no ; then
  	    AC_MSG_WARN(ntohl funtion not found)
    fi
fi
AC_CHECK_FUNC(openlog,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(openlog funtion not found)
fi
AC_CHECK_FUNC(perror,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(perror funtion not found)
fi
AC_CHECK_FUNC(read,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(read funtion not found)
fi
AC_CHECK_FUNC(strcpy,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(strcpy funtion not found)
fi
AC_CHECK_FUNC(strlen,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(strlen funtion not found)
fi
AC_CHECK_FUNC(syslog,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(syslog funtion not found)
fi
AC_CHECK_FUNC(write,result=yes,result=no)
if test $result = no ; then
    AC_MSG_ERROR(write funtion not found)
fi

dnl ===========================================================================
dnl Now check for the GSS-API Header
dnl ===========================================================================

if test "$with_gsi" != "" ; then
	GLOBUS_LOCATION=$with_gsi
fi
if test "$GLOBUS_LOCATION" = "" ; then
    AC_MSG_WARN(Globus location not set => trying with /usr/local/globus)
    GLOBUS_LOCATION=/usr/local/globus
fi

OLDCPPFLAGS="$CPPFLAGS"
CPPFLAGS="$OLDCPPFLAGS -I$GLOBUS_LOCATION/include/gcc32dbg"
unset ac_cv_header_gssapi_h
AC_CHECK_HEADER(gssapi.h,result=yes,result=no)
if test $result = no ; then
    CPPFLAGS="$OLDCPPFLAGS -I$GLOBUS_LOCATION/include/vendorcc32dbg"
    unset ac_cv_header_gssapi_h
    AC_CHECK_HEADER(gssapi.h,result=yes,result=no)
    if test $result = no ; then
        AC_MSG_ERROR(Cannot find gssapi.h in $GLOBUS_LOCATION/include/[g,vendor]cc32dbg)
    fi
fi

dnl ===============================================================================
dnl Search for version
dnl ===============================================================================
version=`cat VERSION`

AC_SUBST(version)
AC_SUBST(archive_ext)
AC_OUTPUT(Makefile)